Transmission mechanism.



1. D. SPANGLBR.

TRANSMISSION MBGHANISM.

APPLICATION FILED APR.21, 1913.

Patented June 23; 1914 y q/vneooeo I Q, .4Q-221mm MA/.CTM

l 1. D. SPANQLB11-- TRANSMISSION MECHANISM,

APPLICATION FILED APB. 21, 1913.

f1 ,1100,924. 'f Patented June :23, 1914,

BBBETSfSBEBT 2l Smink/nto@ www l I.l D. SPANGLER. TRANSMISSION MBGIIANISM. APPLICATION FILED APB..21, 1913, A

Pantea June 23, 1914.

3 SHEETS-SHEET 3.

"no n a 'r i IRA D. SPANGLER, OE SALIDA, COLRABG.'

TRANSMISSIGN LIICHANISM.

To all whom may concern.'

Be it known that I, la. D. PaNoLEn, a citizen ot the United States, residing at Salida, in the county of Chaffee and State of Colorado, have invented certain new and useful Improvements in Transmission liechanisn g and l do decl-.irc the following to be a full, clear, and exact description ot' the invention, such as will enable others skilled in the art to which it appertaius to make and use the same.

rthis invention relates to machine clenients. and more especially to gearing; and the object of the same is to produce an iinproved transmission mechanism 'for use in automobiles and the like (although l do not wish to be confined to this use ot the same) in such manner that all parts thereol1 are readily accessible and may be disconnected, inspected and repaired, and reassembled with ease. This and other objects vare carried out by constructing the transmission mechanism in the manner hereinA after more Jfully described and claimed, and as shown in the drawings wherein- Figure l is aside elevation of this mechanism complete, the casing being in section; and Fig. 2 is a central longitudinal sectional view of the entire mechanism and casing. Fig. 3 is a plan View with the top of the casing and all parts above the master gear broken away. taken on about the line 3 3 of Fig. 1. Figs. at and 8 inclusive are sectional details on the lines it-1, f, 6 6. 7 7, and 8 8 respectively of Fig. l. lig. 9 is a cross section taken on the line l) 9 ot' lig. l; and Fig. l is a horizontal section on the line ith-l0 of Fig. 9. Fig. ll is an elcvation in detail of the shaft sections slightly separated; and Figs. 12. lliand 'le are cross sectional details on the lines '12 l2. ll,

.enfil-14 respectively of Fig. ll.

The casing in the present instance will doubtless be constructed ot aluminum or other light lbut substantial sheet metal. and in contour it will simulate the' lower halt ot a sphere as indicated. lts lower or cupped portion l will have internal crossed webs intersecting a central .socket il, and around the open upper end of this portion or meinbcr will be formed a radial flange suitably dished at opposite points as shown at to contain bearings (l as indicated in dotted liu-cs in Fig. although these hearii torni art of the present invention. Vthe uppeI portion or top ll ot' this casing'will by Specication of Letters Patent.

Application led April 21, 1913.

Patented i une 23, sei-n1 no. 75am.

preference be dat or nearly so, and at its edge 'it will overlie the liange l to which it may be screwed or bolted as at lll, its edge also being provided with curved enlarge-l arch and extending over each slotI is ahrarltet. .n t'or a purpose yet. to appear. The mechanism within the casing may be oiled throup'h these slots or other openings not shown. and surplus oil or grease within the casing may he drawn-olA through a Ventopening closed by a plug 5) as seen in lFig. 9. The shatt sections carrying the connections with the power and the connections with the driven elements (notshown) are disposed end to end and extend through this easing within said arch lo, the sections being themselves mounted within the bearings l. it any are employed. The power shaft section by preference l. malte rather short as seen at the right end of Fig. ll, and at about the middength of its body l provide it.'

with external threads 2l, next inside ,of which is a squared portion and next inside of which the shaft is somewhat reduced and rounded in the torni ot' a stub shaft 2; rEhe driven shalt section is rather longer as shown at the left oi.' this view, its body being provided with two sets of feathers or splines and i2?, its inner end enlarged into a toothe l head 2S, and its inner extremity having a cylindrical socket 29 in which the stub 23 ot' the other shaft section rotates 'freely when the two sections are in place. In the present case wc will assume that the power shaft section 20 rotates in the direction ot the arrows applied thereto in and ll.'a1i d it is the purpose otthis transmission mechanism to communicate'such rotation to the driven shaft section at rarious speeds. l

. llihen this device is used on an automobile high speed or direct drive is acconnilished, as usual. by connecting the shaft sections dirertl \Y to auch other, intermediate and low speed aw ured by connecting the power shaft 2o with the other shatt through the Liconsa loosely engaged by a fork G7 at the lower end or' a lever 68 which rises through one of the slots 17 in the arch 16 and is pivoted in the bracket 18 directly above said slot. rlie upper end of this lever is connected by suitable means such as a rod (39 with transmissionbperating mechanism (not vn), and it will be obvious that when .latter is actuated to move the element- (S6 engagement with the gcar 655, the rotation et the latter by the master gear will cause the rotation of the driven sha'lt 25.

i. collar 'TO is shrunk on or otherwise Se- 1e driven shatt between the featho ano '27. and between the latter and the a thrust bearing Tl. Rotatably 1 h'... `l` I A." l i *T ed around rms cmlar is the cody i3 on the mas y l has axially projecting teeth 75 whereby it becomes one element of a clutch. The other chi. t TC oit this clutch is internally ooved and slidably n'iounted on the feaths Qt, a if is provided with an annular x ,we L locsely engaged bv a fork TT at the lower end ot' a lever T8 which rises through one ot the slots 1T in the arch 16 and is pivoted in the bracket directly above said slots. The upper end of this lever is connected by any suitable means such as the rod T9 with the transmission operating mechanism not shown. lYhen the latter is actuated to move this clutch element to -the right, its teeth engage those on the smaller end otsaid gear 73 so that the rotation otthe latter by the master gear is imparted through this clutch to the driven shaft Q5 which is .rotated at low speed. 1When said operating mechanism is actuated to move the lever to an intermediate or neutral l position seen in Fig. 2, the clutch element is disengaged Jfrom the teeth on the gear in a manner well understood by those familiar with these mechanisms.

A collar 8O is shrunk on or otherwise secured to the driven shaft at the opposite end of the feathers 2G, and to the left of this collar is disposed a.- washer or otherelement constituting thrust bearing S1. Rotat-ably mounted around the collar 8O is the body 3 ot the reverse gear whose teeth are beveled to engage the innermost ring 33 ot' teeth on the master gear, on the opposite side ot the hub of the latter from the point where the low speed gear., 73 engages said ring. The smaller or innerend of the gear 83 has axially projecting teeth S5 whereby it becomes in eii'ectone element ot a clutch, and the other or lett-hand end ot the other clutch element Z6 above described has teeth 72 at its lett end (similar to the teeth 72 at its` left of the position shown in Fig. 2 by the transmission-operating mcchanismin the manner above described. For holding the shaft section 25 against movement to the lett l provide it at suitable points with a thrust bearing 86. As seen in Fig. 5, each pinion body may be provided with a radial hole closed by a plug 87, and through this hole the balls may be inserted or removed.

The operation oil' this improved transmission device will now' be as followslVith the parts standing as seen in Fig. 2 and the power driving the shaft section 2O .in the direction of the arrow, the collar 40 of the driving pinion will rotate with thc shaft, as also the collar 50 of the clutch mechanism, because said collars are fast thereon, and the cone member 53 will rotate with this shaft section because it is mounted on the will not be rotated because the toothed portion t3 of the driving pinion (which is in constant mesh with the other ring 31 of teeth on the master gear) is not now revolving. To produce low speed in a ,reverse direction, the central clutch element is moved into engagement with the pinion 83 which engages the smallest ring 33 of teeth within the master gear, and then the lever 58 is moved to close. the disk clutch by projecting the cone to the right and spreading its dogs 52; and this causes the locking of the toothed ring 43 to the body or collar i0 of the driving pinion so that the rotation ofthe latter is transmitted to the former and by it to the master gear, and the master gear in turn transmits power through its small ring of teeth 33 to the pinion 83 and the latter rotates the driven shaft section 25 in a direction opposite to that of the arrow at the right endof Fig. 2. To produce low speed in a forward direction, the central clutch section is moved to the right instead oi to the left7 and then the disk clutch is closed as above described and power is transmitted from the power pinion through the outer ring 31 of teeth on the masterfgear to the same inner ring of teeth 33 thereof, but on the opposite side of the hub; with the result that the shaft section 25 is rotated in the saine direction as the shaft section QG but at a slower speed. -Assuming that the parts are rotating as has just been described and that:

it is the wish to go on to the next or intermediate speed-this is brought about by.

73 and engaging the right hand clutch with the pinion 63, .and tinally reengaging the main clutch; and thereafter rotation of the power shaft section 20 will cause rotation of the driven-shaftsection 25'in the same direction as the arrow and at a slightly greater speed than formerly but yet notl so fast as the 'driving shaft section 2O revolves.

'ing the main clutch,

52 unscrewed from suming now that it is desired to go onto high speedthis is accomplished by again openthen disengaging the right hand clutch member from the pinion G3, and then actuating the lever 5S to move the cone member 53 to the left from a neutral position until its teeth 55 engage the toothed head 28 of the driven shaft 25. It will obviously not now be necessary to reengage the main clutch, because the driving i shaft section is directly coupled to or connected with the driven shaft section 25 and the latter is rotated at the same speed as and in corresponding direction with the former. Provision will doubtless be made, as usual on automobiles and motor vehicles, for preventing the movement of one lever until the other has first been set at neutral, but this detail need not be amplified. i

For taking down the mechanism above described, thc rods will first be disconnected from their, levers and the latter from their brackets, then the bolts or rivets 14 will be withdrawn and the entire top 11 lifted off, and finally the upper part 39 of the eye at the top of the post 37 will be disconnected from its lower part 38-this exposes all parts of the mechanism to view and gives the operator access to them for cleaning and repair. By Auncotuiling or detaching the shaft section 20 frcm itsconnection with the engine and 'the shaft section 25 from its connection with the driven element or machine, the entire shaft with its bearings G it' there be any) may new be lifted out of the lower part 10 of the casing-as the teeth of the various pinions will disengage the teeth in the master gear.`I The shaft section 20 can now be withdrawn from the shaft section 25 by merely pulling its stub 23 out of the socket 29, and thereafter thecone member can be slipped off of the squared portion 22, the collar which carries the dogs its threaded portion 21, the thrust bearing or collar 44- removed' and the balls run out of the driving pinion and even itsl toothed body 43 drawn oifits collar l-O in case either is to be repaired or replaced. The thrust bearings 86 and 81 may now be slipped off of the shaft sectionl 25, and the balls removed and the ,toothed ring S3 of tliereverse gear takenout ,of place in a similar manner; after which "the intermediate clutch element can be slipped otll the feathers 26 and removed; balls can be run outAof the low speed over'the feathers 26. ,This leaves only the right hand clutch-member and the inter4 pinion 1n pla-ce on the shaft,r However, I have stated above mediate speed section 25. that the various collars ,are shrunken onor otherwise secured to said shaft section, and

thesame is true of the feathers. If these I the former,

pinion and its toothed ring: vremoved in the same manner bypassing it parts are removable in any manner, the same course may be folldwed in taking off the right-hand clutch element and the intermediate gear 63, and in facnthe collars of the various gears could in that case be removed from the shaft if desired. While this shaft is out of place, it is obvious that by first lifting the entire master gear and post 37 out of the socket 30, and then running the cone 36 of the lower bearing off the lower end of said post, the master gear and its hub 34 can be removed therefrom entirely as for inspection and repair. I might suggest that in case a` tooth or a few teeth in any of the rings in this gear become defective, it is quite possible to saw out a segment or a section of the ring in question and replace it with another containing 'perfect teeth. The parts are replaced by a reversal of the operation above described, and the entire mechanism is susceptible of alteration in detail and amplification in its parts without departing from the principle of the invention.

I do not wish to be limited to the proportions or materials, nor to the precise construction set forth above.

What is claimed is;

1. In a mechanism of the class described, the combination of driving -and driven shafts, a series of pinions on the driven shaft, clutch devices for the latter, a stationary upright post at right angles to the driven shaft and having the intermediate portion of its body screw threaded, a master gear having a series of toothed rings to co-act with said pinionsand a hub to slide freely on said. threaded post, upper' and lower bearing members eo-acting with the hub of the master gear and adjustable lengthwise on the threaded portion ofthe post for adjusting the master gear toward and from said pinions, and means for driving the master gear from the driving shaft'. 2. In a mechanism of the class described, the combination with alined driving and driven shaft sections, a driving pinion on several driven pinions loose on the driven shaft, and clutch mechanisms for looking them independently to it; of an upright post beneath the driven shaft, 'a master gear having several rings of teeth, its hub journaled on said post, a casing'having a '.andeye and enlargements at the ends of the are, \.ov erlying said bearings. .l 3. In a mechanism of the class described, the combination with alined drivihg and drivenshaft sections, a driving pinion on the formen'jseveral'driven pinions loose on the ra-:inn and having' a transve driven shaft', and clutch mechanisms for locking them independently to it; oi' an npris'ht post beneath the driven shaft, a master acar havingr several rings of teeth, the gear 5 having` a long hub journaled on said post, a casino' havin;r a socket in which the ion'ei cnil of i l ci,

l post is mounted ano 4, lie-xrings tor said shaft sections, sai. living threaded and carrying a two-part eye o nt it ninier end, bearings adjustable on the post nivo-rc and below said hub, Aieans for ilcnnlzahly connecting the upper part with the lower wher-chi' the eve surrounds said shat'i. a over detachablyY secured upon the c, arch overiyin,"Y said .shaft and the elements thereon and cioscv ttli 4 over the upper part of the the nich bein slotted ninna' it: crown, 1'oracle cts risingY troni said arch, and evers pivoted o'in ilse brackets and projecting through the slots into engagement with said clutch mechanisms, tor the puri se set forth.

in a mechanism ot the class described,

the combination with alined driving` and 5 driven shatt sections, a driving 'pinion loose on the toi-nier and several pinions loose on the latter. clutch mechanisms for 'locking the driven pinions independently to the. riven section. sind a master `gear rotating' in a piane paraliel with the axes ot said sect-ions and having rings ot teeth engaging' ail said pinions; et a rlutch element on the inner end ot the driven shatt section, clutch mechanism for locking the driving` pinion to the 5 driving' shaft ction, a member disposed on and rotated h v this section between its pinion and said element, said ineniber having a clutch element on one end, and means for niovine` the element in either direction, for

40 the purpose set forth.

5. in a mechanism of the class described, the combination with alined driving and driven shaft sections, a dri ving pinion loose l on the former and several pinions loose on the latter, clutch mechanisms tor locking the driven pinions independentlvr to the driven section. and n master gear rotating in a piane parallel with the axes of said sections and having' rings of teeth engaging ali said pinions; of a toothed head on the inner end ot the driven shaft section, the contiguous portion of the driving shaft section oeing squared, a member having a square bore slid ablv mounted thereon and provided with teeth adapted to engage those on said head hy moving this member in one direction, and a clutch ior locking the driving pinion to its shaft section. said ciutch being1 eiosed by the movement of said member in the other direc- 69 tion.

the lattenT clutch mechanisms for loci-ting the driven pinions independently to the driven section, ant. a master gear rotating in a piane parallel with the axes ot said sections and haring rings ot teeth engaging aii said pnnons; or a toothed head on the inner end ot the driven shaft section. the contiguous portion ot the driving sha-ft section being squined, a ineniher having asquare here slidahlv mounted thereon and provided with 'teeth at one end and a cone at the other'end, means tor moving this ineniber in either direction, and a clutch for inchino; the driving `pinion to its shailt section, the clutch includ ings dogs whose inner arms adapten t he disteudesl by said cone.

'i'. in mechanism of trie class described, the combination vvitlr a master rear having a series ot toothed ri a driven shaft see having a toothed head and a socltet in its extremity, several driven pinions ioose on, this section and engaging said toothed rings, and means for locking them.independently to this section; ot a driving shaft section` alined 'with the other section. and having a stub at its extremitv journaled in said socket, a sonni-ed portion next said stub and a threaded portion next said squared portion, a drivingpinion ioose on this section bevond' the threads thereof, a thrust bearing beyond said pinion, clutch mechanism adjustahlv mounted on said threads, a member slidably mounted on said squared `portion and having`l teeth at one end adapted to entre ge those inthe head and means. at its other end for eel 'etHV closing. said clutch, and means for adjusting the yposition ot tais member.

8. In a mechanism of the class described,

a series of toothed rings, a driven shaft secs tion extendingr part Wav across said gear and haviirer a toothed head, and a sochet'in its extremity, several driven pinionsloose on this section and engaging; said .toothed rings, and ineans for locking thein indepeadentiv to this section; of a drivingV shaft sect-ion alined with the other section and having a stub at its extremity journaled in said socket` a squared portion next said stub and a threaded portion next said squared portion, a driving pinion loose on this section bevond the threads thereof, a thrust bearing 'bevond said pinion, a disk mounted on said threads, ,dogs pivoted in its edge, a member siidaolv mounted on the squared portion, and having teeth at one end adapted to engage those in the head. and a cone at lts other; end said dogs, and ineens for adjusting the position of this member. C r a mechanism of the ciass described, the combination ot' a casing having' upper and lower sections and bearings, driving and driven shafts mounted in said bearings, the

bottom section oi the easingheing termed 'With a socket, a` stationary, externaiiy screw threaded post having its lower end seated in said socket and its upper end engaged with the upper section of the casing, pinions on saiddriven shaft, clutch devices for said pin l, a master gear having a series of toothed rings to co-act with the pinions and having a tubular hub to slide freely on the threaded portion of said post, adjustable bearing rings on the threaded portion of the post at the opposite ends of said hub for adjusting the master gear toward and from said pinions, and means for driving the master gear from the driving shaft.

10. In a mechanism of the class described, the combination with a master gear having a plurality of toothed rings, and means for rotating said gear from the power shaft; of a driven shaft extending across said gear and provided with feathers, a series of driven pinions loose on this shaft with their teeth engaging said rings, those which engage the smallest ring being on opposite sides of the center of the master gear and all their teeth being inclined, fixed thrust elements at the larger ends of all pinions, teeth projecting axially from their smaller ends, a member splined on one feather between the innermost pinions and having axial teeth at both its ends, a second member splined on the other feather and having axial teeth co-acting with those on the remaining pinion, and means for moving said members independently in either direction.

11. In a mechanism of the class described, the combination with a master gearv having a; plurality of toothed rings, and means for rotating said gear from the power shaft; of a driven shaft extending across said gear and provided with two feathers, a collar fast on this shaft between the feathers and other collars fast thereon atithe outer ends of the feathers, three driven ypinions whereof thev body of each is revolubly mounted on one of said collars and provided with inclined teeth engaging the teeth of said master gear,

an element xed. on the shaft .at the larger end of each pinion, teeth projecting axially from the smaller end thereof, the teeth of thetwo innermost pinions projecting toward cach other, a member splined on one feather and having teeth at its ends adapted to engage those on said innermost pinions, a second member splincd on the other feather and having teeth adapted to engage those on the remaining pinion, and means Afor movin said members independently in either direction.

12. Ina mechanism of the class described, the combination with driving and driven shaft sections, a driving pinion on the former, and several driven pinions on the driven shaft; of an upright post, a master gear jouriialed on said post and having several rings of teeth, a casing having a socket in which the lower end of said post is mounted and carrying bearings for said shaft sections, the upper end of the post having a two-part' eye, and a cover removably secured upon said casing and having a transverse arch overlying said mechanism and eye and enlargements at the vends of the arch overlying said bearings.

13. The combination with driving and .driven shaft sections, a driving pinion on the former, and a driven piniony onx the driven shaft; of an upright post beneath the driven shaft, a master gear having a long hub journaled on said post, a casing having a socket in which the lower end ofsaid post is mounted, said post being threaded and carrying a two-part eye at its upper end, bearings adjustable on the post above and below said hub, means for detachably connecting" the upper part with the lower whereby the eye surrounds said shaft, and.

a cover detachably secured upon the casing and having a transverse arch overlying said shaft and the elements thereon and closely tting over theV upper part of the eye, for the purpose'set forth.

In testimony .whereof I have hereunto set my hand in presence of two subscribing witnesses.

Y IRA D. SPANGLER. 'Witnesses I H. E. MATTHEWS, W. G. MYERS. 

